166004253 has 12 divisors (see below), whose sum is σ = 241257120. Its totient is φ = 109989576.

The previous prime is 166004249. The next prime is 166004281. The reversal of 166004253 is 352400661.

166004253 is a `hidden beast` number, since 1 + 6 + 600 + 4 + 2 + 53 = 666.

It is not a de Polignac number, because 166004253 - 2² = 166004249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166004353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55113 + ... + 58046.

It is an arithmetic number, because the mean of its divisors is an integer number (20104760).

Almost surely, 2^166004253 is an apocalyptic number.

It is an amenable number.

166004253 is a deficient number, since it is larger than the sum of its proper divisors (75252867).

166004253 is a wasteful number, since it uses less digits than its factorization.

166004253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113328 (or 113325 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 166004253 is about 12884.2637740773. The cubic root of 166004253 is about 549.5911595261.

The spelling of 166004253 in words is "one hundred sixty-six million, four thousand, two hundred fifty-three".